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Avast Academy Security Viruses What is Trojan Malware? The Ultimate Guide

What is Trojan Malware?
The Ultimate Guide

Trojans can hide in unexpected places, such as emails, downloads and more. It's always better to be careful to avoid this type of malware. You can protect yourself against Trojan viruses by using anti-Trojan software.


What is a Trojan horse

A Trojan Horse is a type of malware that pretends to be something useful, helpful, or fun while actually causing harm or stealing data. Trojans are often silently downloading other malware (e.g. spyware, adware, ransomware) on an infected device as well. One of the most dangerous Trojans is Zeus.

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    Where a Trojan comes from

    Trojan viruses often are spread via an infected email attachment or a download that hides in free games, applications, movies or greeting cards.

    How to recognize a Trojan virus

    Your computer will often slow down because of the burden on the processor. The best way to identify if you have been infected is to use a Trojan scanner, found in any Trojan removal software.

    How to remove a Trojan virus

    It's best to use a Trojan remover that can detect and remove any Trojans on your device. The best, free Trojan remover is included in Avast Free Antivirus. When removing Trojans manually, be sure to remove any programs from your computer that are affiliated with the Trojan.

    How to prevent Trojan viruses

    • Avoid opening unknown files attached to email. These have extensions such as .exe, .vbs, and .bat.

    • Maintain up-to-date antivirus protection, preferably with a firewall.

    Protect yourself against Trojan horse viruses

    There is no better way to recognize, remove and prevent Trojan horse viruses than to use an antivirus with an anti-Trojan component, the best of which is provided by Avast.

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